<p></p>
<blockquote>
<p dir="auto">Those patches were suppose to protect against a memcpy from a null pointer, which can be problematic on some systems:</p>
<ul dir="auto">
<li><a href="https://github.com/kamailio/kamailio/issues/2913" data-hovercard-type="issue" data-hovercard-url="/kamailio/kamailio/issues/2913/hovercard">lost PV functions: runtime error: null pointer passed as argument 2, which is declared to never be null #2913</a></li>
</ul>
<p dir="auto">Is this happening only when assigning <code>$aa</code>, or happens for any assignment done to <code>$var(...)</code>?</p>
</blockquote>
<p dir="auto">Tested with pv $ai and $dd and result is the same:<br>
<strong>scscf kamailio.cfg code:</strong><br>
713 xlog("ai [$ai]\n");<br>
714 $var(var_ai) = $ai;<br>
715 xlog("var_ai [$var(var_ai)] len=$(var(var_ia){s.len})\n");<br>
716<br>
717 xlog("dd [$dd]\n");<br>
718 $var(var_dd) = $dd;<br>
719 xlog("var_dd [$var(var_dd)] len=$(var(var_dd){s.len})\n");</p>
<p dir="auto"><strong>Log output:</strong><br>
19572 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[REGISTER] c=[/etc/kamailio_scscf/kamailio.cfg] l=713 a=25 n=xlog                             19573 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) DEBUG: pv [pv_core.c:1327]: pv_get_pai(): no P-Asserted-Identity header<br>
19574 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) ERROR: <script>: <strong>ai []</strong>                                                                                                                     19575 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[REGISTER] c=[/etc/kamailio_scscf/kamailio.cfg] l=714 a=63 n=assign<br>
19576 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) DEBUG: pv [pv_core.c:1327]: pv_get_pai(): no P-Asserted-Identity header                                                                          19577 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[REGISTER] c=[/etc/kamailio_scscf/kamailio.cfg] l=715 a=25 n=xlog                             19578 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) ERROR: <script>: <strong>var_ai [0] len=1</strong><br>
19579 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[REGISTER] c=[/etc/kamailio_scscf/kamailio.cfg] l=717 a=25 n=xlog<br>
19580 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) DEBUG: pv [pv_core.c:1443]: pv_get_dsturi_attr(): no destination URI<br>
19581 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) ERROR: <script>: <strong>dd []</strong><br>
19582 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[REGISTER] c=[/etc/kamailio_scscf/kamailio.cfg] l=718 a=63 n=assign<br>
19583 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) DEBUG: pv [pv_core.c:1443]: pv_get_dsturi_attr(): no destination URI<br>
19584 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[REGISTER] c=[/etc/kamailio_scscf/kamailio.cfg] l=719 a=25 n=xlog<br>
19585 Nov 12 13:30:43 ims_dev-107 kamailio_scscf[4439]:  1(4472) ERROR: <script>: <strong>var_dd [0] len=1</strong></p>

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